The quality of production reflects undoubtedly the image of marketing of each industry of food production. The competition between national industries and European industries is only possible if the factor quality is preserved and pursued. In this context, the information's concerning each alimentary product are essential to the modern consumer and industries are obliged to accompany these consumers requirements of the final product. This implies that modern industries have to carry out a huge number of chemical dairy analyses to inform correctly the consumers. The majority of classical determinations practiced in dairy products are time consuming The difficulty lies essentially in the laborious sample preparation steps, leading to time-consuming determination. The number of assays practiced in dairy products analysis justifies the introduction of automatic methods in routine laboratory analysis. Considering all these features, the objectives of this work were the development of automatic flow systems (namely flow injection and sequential injection systems) for the determination of different chemical parameters carried out in dairy products.